1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Copyright 10/16/2005 Tilman Kranz <tilde@tk-sls.de> 4 * Creative Audio MIDI, for the CA0106 Driver 5 * Version: 0.0.1 6 * 7 * Changelog: 8 * See ca_midi.c 9 */ 10 11 #include <linux/spinlock.h> 12 #include <sound/rawmidi.h> 13 #include <sound/mpu401.h> 14 15 #define CA_MIDI_MODE_INPUT MPU401_MODE_INPUT 16 #define CA_MIDI_MODE_OUTPUT MPU401_MODE_OUTPUT 17 18 struct snd_ca_midi { 19 20 struct snd_rawmidi *rmidi; 21 struct snd_rawmidi_substream *substream_input; 22 struct snd_rawmidi_substream *substream_output; 23 24 void *dev_id; 25 26 spinlock_t input_lock; 27 spinlock_t output_lock; 28 spinlock_t open_lock; 29 30 unsigned int channel; 31 32 unsigned int midi_mode; 33 int port; 34 int tx_enable, rx_enable; 35 int ipr_tx, ipr_rx; 36 37 int input_avail, output_ready; 38 int ack, reset, enter_uart; 39 40 void (*interrupt)(struct snd_ca_midi *midi, unsigned int status); 41 void (*interrupt_enable)(struct snd_ca_midi *midi, int intr); 42 void (*interrupt_disable)(struct snd_ca_midi *midi, int intr); 43 44 unsigned char (*read)(struct snd_ca_midi *midi, int idx); 45 void (*write)(struct snd_ca_midi *midi, int data, int idx); 46 47 /* get info from dev_id */ 48 struct snd_card *(*get_dev_id_card)(void *dev_id); 49 int (*get_dev_id_port)(void *dev_id); 50 }; 51 52 int ca_midi_init(void *card, struct snd_ca_midi *midi, int device, char *name); 53